Question

1) resolva:
A) x+3/x-2 = 3/2

B) 2/1 = 15-x/x

Answer 1

$a) \frac{x + 3}{x - 2} = \frac{3}{2} \\ 2(x + 3 ) = 3(x - 2) \\ 2x + 6 = 3x - 6 \\ 2x - 3x = - 6 - 6 \\ - x = - 12 \\ x = 12 \\ \\ b) \frac{2}{1} = \frac{15 - x}{x} \\ 2 = \frac{15 - x}{x} = 2x = 15 - x \\ 2x + x = 15 \\ 3x = 15 \\ x = 5$

Espero ter ajudado:)